Home / 485,831.39-670,448.48-270,985.37

Finding the Fourth Proportional to 485,831.39, 670,448.48 and 270,985.37

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Solution

The fourth proportional to 485,831.39, 670,448.48 and 270,985.37 is: 373,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,831.39 : 670,448.48 = 270,985.37 : x
  2. Step 2: Convert to fraction form
    485,831.39/670,448.48 = 270,985.37/x
  3. Step 3: Cross multiply
    485,831.39x = 670,448.48 × 270,985.37
  4. Step 4: Simplify right side
    485,831.39x = 181,681,724,711.57
  5. Step 5: Solve for x
    x = 181,681,724,711.57/485,831.39
  6. Step 6: Final answer
    x = 373,960.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.